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More than 20 years ago in May!

-Texas Instruments announces the start of commercial production on silicon transistors.

-Spacewar is shown to the public at the MIT Open House.

-Steven Gray founds the Amateur Computer Society, and begins publishing the ACS Newsletter. Some consider this to be the birthdate of personal computing.

-Computer Automation introduces the PDC 808, it as four kbytes of 8 bit core memory.

-Design work is completed on the Micral, the first non-kit computer based on a microprocessor (the Intel 8008). Built in France, the Micral is advertised in the U.S., but is not successful there.

-The Amateur Computer Group of New Jersey is formed.

-Digital Research copyrights CP/M, its industry-standard microcomputer operating system, created by company founder Gary Kildall.
-The Trenton Computer Festival is held, in New Jersey.

-10 months after its introduction, 175 Apple I kits have sold.
-Pertec buys MITS and the Altair line for US$6 million in stock.

-Intel begins production of the 8086 microprocessor.

-Software Arts demonstrates VisiCalc at the 4th West Coast Computer Faire. Dan Bricklin and Bob Frankston wrote it during 1978-79, under the company name Software Arts, under contract to Personal Software.
-Seattle Computer Products makes the first prototype of its 8086 microprocessor card for the S-100 bus.
-Microsoft tries out its 8086 BASIC on Seattle Computer Products' 8086 processor card for the first time.
-Processor Technology closes.
-Tandy/Radio Shack announces the TRS-80 Model II.

-Apple Computer introduces the Apple III at the National Computer Conference, in Anaheim, California. The Apple III uses a 2-MHz 6502A microprocessor, and includes a 5.25-inch floppy drive. Price ranges from US$4500 to US$8000.
-Universal Data Systems announces the 202LP 1200 bps modem, connecting directly into the phone line, requiring no additional power.